Home / 185,440.38-278,157.69-74,629.50

Finding the Fourth Proportional to 185,440.38, 278,157.69 and 74,629.50

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Solution

The fourth proportional to 185,440.38, 278,157.69 and 74,629.50 is: 111,943.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,440.38 : 278,157.69 = 74,629.50 : x
  2. Step 2: Convert to fraction form
    185,440.38/278,157.69 = 74,629.50/x
  3. Step 3: Cross multiply
    185,440.38x = 278,157.69 × 74,629.50
  4. Step 4: Simplify right side
    185,440.38x = 20,758,769,325.86
  5. Step 5: Solve for x
    x = 20,758,769,325.86/185,440.38
  6. Step 6: Final answer
    x = 111,943.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.